Abstract: The sample holder (12) for supporting a hair strand comprises at least a first arm (24), the first arm (24) comprising an inner face (28) and an outer face (30), the sample holder (12) defining a housing (32) for receiving the hair strand delimited at least in part by the first arm (24). The first arm (24) comprises a through orifice arranged facing the housing (32) for receiving the hair strand and intended to removably receive an optic (18) of a hair strand analysis device (16), the first arm (24) comprising attachment means intended to removably attach the optic (18) of the analysis device (16) to the outer face (30) of the first arm (24).

Abstract: The present application relates to a device for dispensing a determined weight of a cosmetic product into a receptacle from a reservoir, the device comprising at least one electromechanical member capable of moving an amount of cosmetic product from said reservoir installed in the device to a dispensing zone of said device where said amount of product may be transferred through a nozzle into the interior of the receptacle received in said dispensing zone, the device comprising a controller configured to deliver a control signal to the electromechanical member according to an error with respect to a setpoint corresponding to the determined weight of cosmetic product to be delivered, said error being determined on the basis of a weighing datum obtained by at least one weighing cell for the reservoir installed in the receiving zone, the device being characterized in that the controller is a reinforcement-learning controller.

Abstract: A bead assembly for a formulation dispenser includes a bead container configured to store a plurality of formulation beads, a singulator assembly configured to regulate dispensation of the formulation beads from the bead container, a sub-frame configured to support the bead container and the singulator assembly. A modular bead unit includes the bead container and at least a portion of the singulator assembly, and is removably attachable to the sub-frame.

Abstract: A fluid formulation assembly for a formulation dispenser includes a fluid container configured to store a volume of fluid cosmetic formulation, a drive assembly operatively connectable to the fluid container and configured to dispense the fluid cosmetic formulation, and a carriage that receives the fluid container and is configured to interface with the drive assembly. The fluid container is removably attachable with the carriage without tools and at least one of the drive assembly or the carriage is removably attachable with the cosmetic formulation dispenser.

Abstract: A bead assembly for a formulation dispenser includes a bead container configured to store a plurality of formulation beads, a singulator assembly configured to regulate dispensation of the formulation beads from the bead container, a sub-frame configured to support the bead container and the singulator assembly. A modular bead unit includes the bead container and at least a portion of the singulator assembly, and is removably attachable to the sub-frame.

Abstract: A fluid formulation assembly for a formulation dispenser includes a fluid container configured to store a volume of fluid cosmetic formulation, a drive assembly operatively connectable to the fluid container and configured to dispense the fluid cosmetic formulation, and a carriage that receives the fluid container and is configured to interface with the drive assembly. The fluid container is removably attachable with the carriage without tools and at least one of the drive assembly or the carriage is removably attachable with the cosmetic formulation dispenser.